./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/eqn1f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/eqn1f.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8 --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 18b341884f23a5462ed7b5a2994c7faf53737afb439f1d86e003040fe93a66eb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:31:37,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:31:38,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:31:38,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:31:38,032 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:31:38,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:31:38,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:31:38,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:31:38,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:31:38,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:31:38,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:31:38,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:31:38,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:31:38,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:31:38,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:31:38,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:31:38,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:31:38,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:31:38,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:31:38,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:31:38,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:31:38,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:31:38,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:31:38,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:31:38,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:31:38,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:31:38,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:31:38,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:31:38,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:31:38,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:31:38,098 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:31:38,099 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:31:38,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:31:38,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:31:38,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:31:38,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:31:38,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:31:38,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:31:38,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:31:38,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:31:38,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:31:38,106 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:31:38,162 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:31:38,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:31:38,166 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:31:38,167 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:31:38,167 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:31:38,167 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:31:38,167 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:31:38,168 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:31:38,174 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:31:38,175 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:31:38,175 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:31:38,175 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:31:38,176 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:31:38,177 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:31:38,177 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:31:38,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:31:38,178 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:31:38,179 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:31:38,179 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:31:38,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:31:38,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:31:38,180 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:31:38,180 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:31:38,180 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:31:38,180 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:31:38,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:31:38,181 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:31:38,181 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:31:38,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:31:38,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:31:38,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:31:38,184 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:31:38,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:31:38,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:31:38,185 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:31:38,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:31:38,185 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:31:38,186 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:31:38,186 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:31:38,186 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_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18b341884f23a5462ed7b5a2994c7faf53737afb439f1d86e003040fe93a66eb [2021-11-07 01:31:38,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:31:38,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:31:38,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:31:38,493 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:31:38,494 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:31:38,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/array-fpi/eqn1f.c [2021-11-07 01:31:38,566 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/data/7902786ed/38a51a1d186e43b18dc5115a0aaacbed/FLAGcf01ff166 [2021-11-07 01:31:39,034 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:31:39,034 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/sv-benchmarks/c/array-fpi/eqn1f.c [2021-11-07 01:31:39,041 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/data/7902786ed/38a51a1d186e43b18dc5115a0aaacbed/FLAGcf01ff166 [2021-11-07 01:31:39,384 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/data/7902786ed/38a51a1d186e43b18dc5115a0aaacbed [2021-11-07 01:31:39,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:31:39,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:31:39,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:31:39,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:31:39,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:31:39,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:31:39" (1/1) ... [2021-11-07 01:31:39,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60b7ea84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:39, skipping insertion in model container [2021-11-07 01:31:39,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:31:39" (1/1) ... [2021-11-07 01:31:39,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:31:39,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:31:39,608 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/sv-benchmarks/c/array-fpi/eqn1f.c[588,601] [2021-11-07 01:31:39,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:31:39,637 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:31:39,650 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/sv-benchmarks/c/array-fpi/eqn1f.c[588,601] [2021-11-07 01:31:39,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:31:39,674 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:31:39,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:39 WrapperNode [2021-11-07 01:31:39,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:31:39,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:31:39,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:31:39,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:31:39,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:39" (1/1) ... [2021-11-07 01:31:39,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:39" (1/1) ... [2021-11-07 01:31:39,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:31:39,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:31:39,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:31:39,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:31:39,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:39" (1/1) ... [2021-11-07 01:31:39,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:39" (1/1) ... [2021-11-07 01:31:39,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:39" (1/1) ... [2021-11-07 01:31:39,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:39" (1/1) ... [2021-11-07 01:31:39,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:39" (1/1) ... [2021-11-07 01:31:39,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:39" (1/1) ... [2021-11-07 01:31:39,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:39" (1/1) ... [2021-11-07 01:31:39,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:31:39,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:31:39,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:31:39,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:31:39,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:39" (1/1) ... [2021-11-07 01:31:39,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:31:39,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:31:39,790 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:31:39,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:31:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 01:31:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:31:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 01:31:39,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:31:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:31:39,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:31:39,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 01:31:40,221 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:31:40,221 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-07 01:31:40,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:31:40 BoogieIcfgContainer [2021-11-07 01:31:40,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:31:40,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:31:40,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:31:40,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:31:40,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:31:39" (1/3) ... [2021-11-07 01:31:40,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ce810f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:31:40, skipping insertion in model container [2021-11-07 01:31:40,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:31:39" (2/3) ... [2021-11-07 01:31:40,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ce810f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:31:40, skipping insertion in model container [2021-11-07 01:31:40,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:31:40" (3/3) ... [2021-11-07 01:31:40,234 INFO L111 eAbstractionObserver]: Analyzing ICFG eqn1f.c [2021-11-07 01:31:40,240 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:31:40,240 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:31:40,291 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:31:40,298 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 [2021-11-07 01:31:40,298 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 01:31:40,314 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:31:40,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-07 01:31:40,319 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:31:40,319 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:31:40,320 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:31:40,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:31:40,339 INFO L85 PathProgramCache]: Analyzing trace with hash -794748304, now seen corresponding path program 1 times [2021-11-07 01:31:40,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:31:40,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790082397] [2021-11-07 01:31:40,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:31:40,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:31:40,544 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:31:40,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1018878641] [2021-11-07 01:31:40,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:31:40,546 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:31:40,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:31:40,552 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:31:40,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 01:31:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:31:40,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 01:31:40,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:31:40,766 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-07 01:31:40,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-11-07 01:31:40,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:31:40,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:31:41,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:31:41,097 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:31:41,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790082397] [2021-11-07 01:31:41,098 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:31:41,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018878641] [2021-11-07 01:31:41,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018878641] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:31:41,099 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:31:41,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-07 01:31:41,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856920367] [2021-11-07 01:31:41,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 01:31:41,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:31:41,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 01:31:41,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:31:41,125 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:31:41,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:31:41,288 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2021-11-07 01:31:41,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:31:41,290 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-07 01:31:41,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:31:41,298 INFO L225 Difference]: With dead ends: 35 [2021-11-07 01:31:41,299 INFO L226 Difference]: Without dead ends: 20 [2021-11-07 01:31:41,302 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:31:41,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-07 01:31:41,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2021-11-07 01:31:41,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:31:41,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2021-11-07 01:31:41,340 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 17 transitions. Word has length 7 [2021-11-07 01:31:41,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:31:41,341 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-11-07 01:31:41,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:31:41,343 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2021-11-07 01:31:41,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 01:31:41,344 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:31:41,344 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:31:41,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:31:41,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-07 01:31:41,553 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:31:41,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:31:41,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1127926275, now seen corresponding path program 1 times [2021-11-07 01:31:41,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:31:41,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551043825] [2021-11-07 01:31:41,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:31:41,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:31:41,599 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:31:41,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [79378694] [2021-11-07 01:31:41,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:31:41,600 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:31:41,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:31:41,601 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:31:41,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 01:31:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:31:41,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:31:41,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:31:41,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:31:41,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:31:41,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:31:41,750 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:31:41,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551043825] [2021-11-07 01:31:41,751 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:31:41,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79378694] [2021-11-07 01:31:41,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79378694] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:31:41,755 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:31:41,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-07 01:31:41,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323273900] [2021-11-07 01:31:41,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:31:41,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:31:41,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:31:41,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:31:41,759 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:31:41,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:31:41,821 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2021-11-07 01:31:41,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:31:41,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-07 01:31:41,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:31:41,824 INFO L225 Difference]: With dead ends: 25 [2021-11-07 01:31:41,825 INFO L226 Difference]: Without dead ends: 19 [2021-11-07 01:31:41,826 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:31:41,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-07 01:31:41,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 13. [2021-11-07 01:31:41,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:31:41,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2021-11-07 01:31:41,838 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 8 [2021-11-07 01:31:41,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:31:41,838 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-11-07 01:31:41,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:31:41,840 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-11-07 01:31:41,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 01:31:41,841 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:31:41,841 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:31:41,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:31:42,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:31:42,069 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:31:42,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:31:42,069 INFO L85 PathProgramCache]: Analyzing trace with hash 849022933, now seen corresponding path program 1 times [2021-11-07 01:31:42,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:31:42,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402559882] [2021-11-07 01:31:42,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:31:42,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:31:42,093 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:31:42,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [456780038] [2021-11-07 01:31:42,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:31:42,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:31:42,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:31:42,095 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:31:42,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 01:31:42,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:31:42,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:31:42,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:31:42,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:31:42,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:31:42,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:31:42,275 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:31:42,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402559882] [2021-11-07 01:31:42,276 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:31:42,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456780038] [2021-11-07 01:31:42,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456780038] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:31:42,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [656749521] [2021-11-07 01:31:42,311 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 01:31:42,311 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:31:42,329 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:31:42,338 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:31:42,338 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:31:42,392 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:42,394 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:42,395 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:42,396 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:31:42,403 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:42,404 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:42,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:31:42,411 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 01:31:42,432 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_19|], 21=[|v_#valid_20|]} [2021-11-07 01:31:42,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:31:42,450 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:42,451 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:31:42,452 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:42,455 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:31:42,456 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:42,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:42,490 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:42,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,543 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 31 treesize of output 30 [2021-11-07 01:31:42,549 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:42,552 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:31:42,554 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:42,555 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:31:42,555 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:42,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:42,598 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:42,602 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:42,608 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 01:31:42,609 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:31:42,611 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 01:31:42,638 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size [2021-11-07 01:31:42,640 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:42,645 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:42,645 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-11-07 01:31:42,648 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:42,652 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:42,654 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-07 01:31:42,655 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:42,660 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:42,660 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:31:42,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-11-07 01:31:42,695 INFO L446 ElimStorePlain]: Different costs {9=[|v_#length_20|], 28=[|v_#valid_21|]} [2021-11-07 01:31:42,717 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:31:42,717 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:42,719 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:31:42,720 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:42,720 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:31:42,721 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:42,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,793 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 01:31:42,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 39 [2021-11-07 01:31:42,797 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:42,801 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:31:42,802 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:42,803 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:31:42,803 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:42,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:42,834 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:42,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,920 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 01:31:42,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 53 [2021-11-07 01:31:42,923 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:42,930 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:31:42,931 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:42,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:31:42,933 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:42,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:42,956 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:42,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:42,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2021-11-07 01:31:42,981 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:42,986 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:31:42,987 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:42,989 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:31:42,989 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:42,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:43,027 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,035 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,046 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-11-07 01:31:43,049 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:31:43,049 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:396, output treesize:177 [2021-11-07 01:31:43,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,069 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:43,070 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,071 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:31:43,081 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-11-07 01:31:43,107 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:31:43,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:43,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:43,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:43,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:43,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-11-07 01:31:43,119 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,127 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 01:31:43,128 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 01:31:43,130 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:43,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:43,152 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,157 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,161 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-11-07 01:31:43,162 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:31:43,163 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:211, output treesize:212 [2021-11-07 01:31:43,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:43,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:43,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:43,332 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,351 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:43,359 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,360 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:43,362 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-11-07 01:31:43,365 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:43,366 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,366 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:31:43,375 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 450 [2021-11-07 01:31:43,377 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:43,384 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,396 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 420 [2021-11-07 01:31:43,408 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 499 [2021-11-07 01:31:43,443 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:31:43,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:43,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:43,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:43,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:43,449 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:31:43,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:43,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-11-07 01:31:43,465 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,479 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:31:43,480 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,481 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:31:43,481 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:43,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:43,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:43,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:43,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:43,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:43,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:43,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 79 [2021-11-07 01:31:43,520 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,524 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-11-07 01:31:43,525 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,526 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-11-07 01:31:43,526 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:43,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:43,599 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,626 INFO L180 QuantifierPusher]: treesize reduction 135, result has 77.5 percent of original size [2021-11-07 01:31:43,633 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 466 [2021-11-07 01:31:43,634 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:31:43,635 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:600, output treesize:466 [2021-11-07 01:31:43,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:43,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:43,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:43,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:43,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:43,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:43,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:43,769 INFO L180 QuantifierPusher]: treesize reduction 48, result has 64.4 percent of original size [2021-11-07 01:31:43,772 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:43,773 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,774 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 01:31:43,776 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-07 01:31:43,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:43,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2021-11-07 01:31:43,789 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,791 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:31:43,792 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,792 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:31:43,795 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:43,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:43,800 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,801 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,803 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-07 01:31:43,803 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:31:43,804 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:80 [2021-11-07 01:31:43,812 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-11-07 01:31:43,817 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:31:43,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:43,826 INFO L185 QuantifierPusher]: treesize reduction 4, result has 92.9 percent of original size 52 [2021-11-07 01:31:43,834 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:31:44,450 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:31:44,450 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:31:44,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-11-07 01:31:44,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258507049] [2021-11-07 01:31:44,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:31:44,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:31:44,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:31:44,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:31:44,452 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:31:44,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:31:44,537 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2021-11-07 01:31:44,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:31:44,538 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-07 01:31:44,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:31:44,538 INFO L225 Difference]: With dead ends: 29 [2021-11-07 01:31:44,538 INFO L226 Difference]: Without dead ends: 24 [2021-11-07 01:31:44,539 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2021-11-07 01:31:44,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-07 01:31:44,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 14. [2021-11-07 01:31:44,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:31:44,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2021-11-07 01:31:44,543 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 8 [2021-11-07 01:31:44,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:31:44,544 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-11-07 01:31:44,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:31:44,544 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2021-11-07 01:31:44,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 01:31:44,545 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:31:44,545 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:31:44,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:31:44,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:31:44,760 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:31:44,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:31:44,761 INFO L85 PathProgramCache]: Analyzing trace with hash 545227070, now seen corresponding path program 1 times [2021-11-07 01:31:44,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:31:44,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85663675] [2021-11-07 01:31:44,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:31:44,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:31:44,782 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:31:44,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [371890329] [2021-11-07 01:31:44,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:31:44,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:31:44,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:31:44,793 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:31:44,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 01:31:44,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:31:44,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 01:31:44,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:31:44,918 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-07 01:31:44,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-11-07 01:31:44,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-07 01:31:45,000 INFO L354 Elim1Store]: treesize reduction 74, result has 26.0 percent of original size [2021-11-07 01:31:45,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 52 [2021-11-07 01:31:45,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:45,214 INFO L354 Elim1Store]: treesize reduction 204, result has 13.2 percent of original size [2021-11-07 01:31:45,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 70 treesize of output 70 [2021-11-07 01:31:45,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:31:45,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:31:48,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:31:48,419 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:31:48,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85663675] [2021-11-07 01:31:48,419 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:31:48,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371890329] [2021-11-07 01:31:48,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371890329] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:31:48,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [279313868] [2021-11-07 01:31:48,422 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 01:31:48,422 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:31:48,423 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:31:48,423 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:31:48,423 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:31:48,429 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,430 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:48,431 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,431 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:31:48,432 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:48,432 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,433 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:31:48,435 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 01:31:48,438 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_22|], 21=[|v_#valid_24|]} [2021-11-07 01:31:48,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:31:48,450 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,451 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:31:48,451 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,452 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:31:48,452 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:48,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:48,457 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,478 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 31 treesize of output 30 [2021-11-07 01:31:48,479 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,481 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:31:48,482 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,483 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:31:48,483 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:48,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:48,487 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,489 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 01:31:48,492 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:31:48,492 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 01:31:48,500 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size [2021-11-07 01:31:48,502 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:48,502 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,503 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-07 01:31:48,504 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:48,505 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,505 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-11-07 01:31:48,506 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:48,506 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,507 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:31:48,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-11-07 01:31:48,516 INFO L446 ElimStorePlain]: Different costs {9=[|v_#length_23|], 28=[|v_#valid_25|]} [2021-11-07 01:31:48,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,585 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 01:31:48,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 39 [2021-11-07 01:31:48,587 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:31:48,590 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,591 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:31:48,591 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:48,600 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:31:48,601 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,602 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:31:48,602 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,603 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:31:48,603 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:48,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:48,612 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,676 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 01:31:48,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 53 [2021-11-07 01:31:48,677 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,681 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:31:48,682 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,683 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:31:48,683 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:48,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:48,691 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2021-11-07 01:31:48,709 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,711 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:31:48,712 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,713 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:31:48,713 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:48,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:48,722 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,726 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,729 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-11-07 01:31:48,730 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:31:48,730 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:396, output treesize:177 [2021-11-07 01:31:48,735 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,737 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:48,738 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,739 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-11-07 01:31:48,744 INFO L185 QuantifierPusher]: treesize reduction 3, result has 98.5 percent of original size 198 [2021-11-07 01:31:48,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:48,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 54 [2021-11-07 01:31:48,800 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-07 01:31:48,803 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,804 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-07 01:31:48,804 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:48,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:48,814 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,819 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.4 percent of original size [2021-11-07 01:31:48,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-11-07 01:31:48,823 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:31:48,823 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:199, output treesize:186 [2021-11-07 01:31:48,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:48,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:48,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:48,923 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,937 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:48,944 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,945 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:48,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-07 01:31:48,948 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:48,949 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:31:48,956 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 420 [2021-11-07 01:31:48,956 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:48,962 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:48,968 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 390 [2021-11-07 01:31:48,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 472 [2021-11-07 01:31:48,998 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:31:48,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,004 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:31:49,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-11-07 01:31:49,019 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,026 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 01:31:49,027 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,028 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 01:31:49,028 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:49,045 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:31:49,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 72 [2021-11-07 01:31:49,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-07 01:31:49,059 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,060 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-07 01:31:49,060 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:49,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:49,119 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,140 INFO L180 QuantifierPusher]: treesize reduction 128, result has 77.9 percent of original size [2021-11-07 01:31:49,146 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 450 [2021-11-07 01:31:49,148 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:31:49,148 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:576, output treesize:450 [2021-11-07 01:31:49,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:49,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:49,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:49,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:49,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:49,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:49,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:49,259 INFO L180 QuantifierPusher]: treesize reduction 48, result has 64.4 percent of original size [2021-11-07 01:31:49,261 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:49,262 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,262 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 01:31:49,263 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-07 01:31:49,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2021-11-07 01:31:49,272 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,273 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:31:49,273 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,274 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:31:49,274 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:49,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:49,278 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,279 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,280 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-07 01:31:49,281 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:31:49,281 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:80 [2021-11-07 01:31:49,287 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-11-07 01:31:49,289 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:31:49,292 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,293 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:49,294 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,294 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:31:49,296 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-11-07 01:31:49,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,306 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:31:49,309 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:31:49,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:31:49,311 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,312 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:31:49,312 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,313 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:31:49,313 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:49,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:49,316 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,318 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-11-07 01:31:49,320 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:31:49,320 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:95, output treesize:93 [2021-11-07 01:31:49,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:49,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:49,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:49,355 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,360 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:49,362 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,363 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:49,363 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,364 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 01:31:49,365 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:49,366 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,366 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:31:49,368 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-11-07 01:31:49,368 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:49,370 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,372 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 153 [2021-11-07 01:31:49,382 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 226 [2021-11-07 01:31:49,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,418 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:31:49,419 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:31:49,428 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-07 01:31:49,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 69 treesize of output 68 [2021-11-07 01:31:49,430 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,431 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-07 01:31:49,432 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,433 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-07 01:31:49,433 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:49,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,446 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:31:49,451 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:31:49,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:31:49,454 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,455 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:31:49,456 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,456 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:31:49,457 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:49,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:49,478 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,486 INFO L180 QuantifierPusher]: treesize reduction 115, result has 64.7 percent of original size [2021-11-07 01:31:49,488 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-11-07 01:31:49,489 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:31:49,489 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:330, output treesize:211 [2021-11-07 01:31:49,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:49,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:49,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:49,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:49,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:49,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:49,531 INFO L180 QuantifierPusher]: treesize reduction 48, result has 66.7 percent of original size [2021-11-07 01:31:49,532 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:31:49,533 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,534 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:31:49,535 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 01:31:49,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:31:49,545 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:31:49,549 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:31:49,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:31:49,550 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,552 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:31:49,553 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,554 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:31:49,554 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:31:49,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:31:49,558 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,559 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:31:49,560 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-07 01:31:49,561 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:31:49,561 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:89 [2021-11-07 01:31:49,568 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-11-07 01:31:49,570 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:31:49,575 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:31:50,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:31:50,258 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:31:50,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2021-11-07 01:31:50,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102690470] [2021-11-07 01:31:50,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 01:31:50,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:31:50,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 01:31:50,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=223, Unknown=2, NotChecked=0, Total=272 [2021-11-07 01:31:50,260 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:32:07,686 WARN L207 SmtUtils]: Spent 5.92 s on a formula simplification that was a NOOP. DAG size: 31 [2021-11-07 01:32:16,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:32:16,191 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2021-11-07 01:32:16,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-07 01:32:16,192 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-07 01:32:16,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:32:16,195 INFO L225 Difference]: With dead ends: 59 [2021-11-07 01:32:16,195 INFO L226 Difference]: Without dead ends: 57 [2021-11-07 01:32:16,196 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 6 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=176, Invalid=808, Unknown=8, NotChecked=0, Total=992 [2021-11-07 01:32:16,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-07 01:32:16,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 21. [2021-11-07 01:32:16,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:32:16,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2021-11-07 01:32:16,204 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 29 transitions. Word has length 9 [2021-11-07 01:32:16,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:32:16,204 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 29 transitions. [2021-11-07 01:32:16,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:32:16,204 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2021-11-07 01:32:16,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 01:32:16,205 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:32:16,206 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:32:16,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:32:16,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-07 01:32:16,432 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:32:16,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:32:16,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1813092602, now seen corresponding path program 1 times [2021-11-07 01:32:16,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:32:16,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530956525] [2021-11-07 01:32:16,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:32:16,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:32:16,456 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:32:16,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1950924469] [2021-11-07 01:32:16,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:32:16,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:32:16,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:32:16,463 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:32:16,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 01:32:16,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:32:16,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:32:16,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:32:16,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:32:16,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:32:16,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:32:16,715 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:32:16,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530956525] [2021-11-07 01:32:16,715 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:32:16,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950924469] [2021-11-07 01:32:16,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950924469] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:32:16,716 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:32:16,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-07 01:32:16,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559598449] [2021-11-07 01:32:16,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:32:16,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:32:16,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:32:16,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:32:16,718 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:32:16,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:32:16,790 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2021-11-07 01:32:16,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:32:16,791 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-07 01:32:16,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:32:16,793 INFO L225 Difference]: With dead ends: 35 [2021-11-07 01:32:16,793 INFO L226 Difference]: Without dead ends: 25 [2021-11-07 01:32:16,794 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:32:16,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-07 01:32:16,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 20. [2021-11-07 01:32:16,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:32:16,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-11-07 01:32:16,807 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 27 transitions. Word has length 10 [2021-11-07 01:32:16,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:32:16,808 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-11-07 01:32:16,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:32:16,808 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2021-11-07 01:32:16,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 01:32:16,809 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:32:16,809 INFO L513 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:32:16,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:32:17,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:32:17,017 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:32:17,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:32:17,017 INFO L85 PathProgramCache]: Analyzing trace with hash -172558306, now seen corresponding path program 2 times [2021-11-07 01:32:17,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:32:17,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020243637] [2021-11-07 01:32:17,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:32:17,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:32:17,032 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:32:17,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1823959807] [2021-11-07 01:32:17,033 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 01:32:17,033 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:32:17,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:32:17,034 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:32:17,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-07 01:32:17,142 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-07 01:32:17,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:32:17,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 01:32:17,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:32:17,229 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:32:17,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:32:17,283 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 01:32:17,284 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:32:17,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020243637] [2021-11-07 01:32:17,284 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:32:17,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823959807] [2021-11-07 01:32:17,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823959807] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:32:17,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [472984435] [2021-11-07 01:32:17,287 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 01:32:17,288 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:32:17,288 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:32:17,288 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:32:17,289 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:32:17,298 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,299 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:32:17,300 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,300 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:32:17,301 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:32:17,302 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,303 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:32:17,304 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 01:32:17,307 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_26|], 21=[|v_#valid_28|]} [2021-11-07 01:32:17,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:32:17,322 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,323 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:32:17,324 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,324 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:32:17,325 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:32:17,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:17,329 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,351 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 31 treesize of output 30 [2021-11-07 01:32:17,352 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:32:17,355 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,357 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:32:17,357 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:32:17,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:17,361 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,363 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,364 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 01:32:17,365 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:32:17,365 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 01:32:17,373 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size [2021-11-07 01:32:17,374 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:32:17,375 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-11-07 01:32:17,377 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:32:17,377 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,378 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-07 01:32:17,379 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:32:17,387 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,387 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:32:17,391 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-11-07 01:32:17,396 INFO L446 ElimStorePlain]: Different costs {9=[|v_#length_27|], 28=[|v_#valid_29|]} [2021-11-07 01:32:17,404 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:32:17,405 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:32:17,406 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,407 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:32:17,407 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:32:17,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,438 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 01:32:17,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 39 [2021-11-07 01:32:17,439 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,441 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:32:17,442 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,443 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:32:17,444 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:32:17,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:17,453 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,501 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 01:32:17,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 53 [2021-11-07 01:32:17,503 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,506 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:32:17,507 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,508 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:32:17,508 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:32:17,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:17,517 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2021-11-07 01:32:17,535 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,536 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:32:17,537 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:32:17,539 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:32:17,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:17,547 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,550 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,554 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-11-07 01:32:17,555 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:32:17,555 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:396, output treesize:177 [2021-11-07 01:32:17,561 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,563 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:32:17,564 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,565 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:32:17,569 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-11-07 01:32:17,585 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:32:17,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-11-07 01:32:17,593 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,595 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-07 01:32:17,596 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,597 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-07 01:32:17,597 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:32:17,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:17,609 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,613 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,616 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 201 [2021-11-07 01:32:17,617 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:32:17,618 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:211, output treesize:201 [2021-11-07 01:32:17,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:17,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:17,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:17,700 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,716 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:32:17,722 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,724 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:32:17,724 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,725 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 01:32:17,726 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:32:17,727 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,727 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:32:17,734 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 439 [2021-11-07 01:32:17,735 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:32:17,742 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,749 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 409 [2021-11-07 01:32:17,757 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 488 [2021-11-07 01:32:17,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-07 01:32:17,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-07 01:32:17,825 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,825 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-07 01:32:17,826 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:32:17,843 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:32:17,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:17,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-11-07 01:32:17,852 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,854 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:32:17,855 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,856 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:32:17,856 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:32:17,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:17,899 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:17,922 INFO L180 QuantifierPusher]: treesize reduction 133, result has 76.9 percent of original size [2021-11-07 01:32:17,930 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 444 [2021-11-07 01:32:17,932 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:32:17,932 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:589, output treesize:444 [2021-11-07 01:32:17,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:17,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:17,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:17,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:17,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:17,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:18,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:18,010 INFO L180 QuantifierPusher]: treesize reduction 48, result has 64.4 percent of original size [2021-11-07 01:32:18,012 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:32:18,013 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,013 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 01:32:18,015 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-07 01:32:18,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:18,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2021-11-07 01:32:18,023 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,024 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:32:18,025 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,025 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:32:18,025 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:32:18,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:18,028 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,029 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,030 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-07 01:32:18,030 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:32:18,030 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:80 [2021-11-07 01:32:18,036 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-11-07 01:32:18,037 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:32:18,039 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,041 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:32:18,041 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,042 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:32:18,043 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-11-07 01:32:18,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:18,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:18,053 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:32:18,056 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:32:18,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:32:18,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:32:18,058 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:32:18,059 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:32:18,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:18,062 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,063 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,064 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-11-07 01:32:18,064 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:32:18,065 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:95, output treesize:93 [2021-11-07 01:32:18,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:18,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:18,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:18,094 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,098 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:32:18,099 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,100 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:32:18,100 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,101 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:32:18,101 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:32:18,102 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,108 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 01:32:18,110 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 209 [2021-11-07 01:32:18,110 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:32:18,111 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,113 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-11-07 01:32:18,115 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-11-07 01:32:18,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:18,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:18,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:18,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:18,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:18,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:18,146 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:32:18,147 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:32:18,153 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-07 01:32:18,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 69 treesize of output 68 [2021-11-07 01:32:18,154 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,156 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-07 01:32:18,156 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,157 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-07 01:32:18,157 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:32:18,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:18,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:18,169 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:32:18,174 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:32:18,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:32:18,175 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,176 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:32:18,176 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,177 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:32:18,177 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:32:18,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:18,190 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,196 INFO L180 QuantifierPusher]: treesize reduction 119, result has 65.0 percent of original size [2021-11-07 01:32:18,198 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-07 01:32:18,199 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:32:18,199 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:330, output treesize:221 [2021-11-07 01:32:18,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:18,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:18,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:18,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:18,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:18,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:18,232 INFO L180 QuantifierPusher]: treesize reduction 48, result has 66.7 percent of original size [2021-11-07 01:32:18,234 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:32:18,234 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,235 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:32:18,236 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 01:32:18,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:18,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:18,245 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:32:18,250 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:32:18,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:32:18,251 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,252 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:32:18,252 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,253 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:32:18,253 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:32:18,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:32:18,256 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,257 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:32:18,263 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-11-07 01:32:18,264 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:32:18,264 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:91 [2021-11-07 01:32:18,270 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-11-07 01:32:18,272 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:32:18,277 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:32:18,807 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:32:18,807 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:32:18,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-11-07 01:32:18,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525930757] [2021-11-07 01:32:18,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:32:18,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:32:18,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:32:18,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:32:18,809 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:32:18,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:32:18,892 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2021-11-07 01:32:18,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:32:18,892 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-07 01:32:18,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:32:18,893 INFO L225 Difference]: With dead ends: 40 [2021-11-07 01:32:18,893 INFO L226 Difference]: Without dead ends: 31 [2021-11-07 01:32:18,893 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2021-11-07 01:32:18,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-07 01:32:18,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 20. [2021-11-07 01:32:18,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:32:18,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2021-11-07 01:32:18,900 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 26 transitions. Word has length 11 [2021-11-07 01:32:18,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:32:18,900 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-11-07 01:32:18,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:32:18,900 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2021-11-07 01:32:18,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 01:32:18,901 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:32:18,901 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:32:18,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:32:19,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:32:19,102 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:32:19,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:32:19,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1910697616, now seen corresponding path program 3 times [2021-11-07 01:32:19,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:32:19,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455237379] [2021-11-07 01:32:19,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:32:19,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:32:19,120 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:32:19,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [877661737] [2021-11-07 01:32:19,121 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 01:32:19,121 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:32:19,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:32:19,122 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:32:19,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 01:32:19,239 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 01:32:19,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:32:19,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-07 01:32:19,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:32:19,268 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-07 01:32:19,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-11-07 01:32:19,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-07 01:32:19,335 INFO L354 Elim1Store]: treesize reduction 74, result has 26.0 percent of original size [2021-11-07 01:32:19,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 52 [2021-11-07 01:32:19,486 INFO L354 Elim1Store]: treesize reduction 200, result has 28.3 percent of original size [2021-11-07 01:32:19,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 69 treesize of output 116 [2021-11-07 01:32:22,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:22,130 INFO L354 Elim1Store]: treesize reduction 152, result has 0.7 percent of original size [2021-11-07 01:32:22,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 148 treesize of output 134 [2021-11-07 01:32:23,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:32:23,371 INFO L354 Elim1Store]: treesize reduction 962, result has 8.9 percent of original size [2021-11-07 01:32:23,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 186 treesize of output 181 [2021-11-07 01:33:39,218 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:33:39,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:33:41,004 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~i~0_111 Int)) (or (< v_ULTIMATE.start_main_~i~0_111 (+ c_ULTIMATE.start_main_~i~0 1)) (= (select (let ((.cse0 (let ((.cse2 (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base)) (.cse3 (* c_ULTIMATE.start_main_~i~0 8))) (store .cse2 (+ .cse3 c_ULTIMATE.start_main_~b~0.offset) (+ (select .cse2 (+ .cse3 c_ULTIMATE.start_main_~b~0.offset (- 8))) (select (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base) (+ .cse3 c_ULTIMATE.start_main_~a~0.offset (- 8))))))) (.cse1 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1) (+ (select .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1 (- 8))) (select (select (store |c_#memory_int| c_ULTIMATE.start_main_~b~0.base .cse0) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse1 (- 8)))))) c_ULTIMATE.start_main_~b~0.offset) 1))) is different from false [2021-11-07 01:33:42,126 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~i~0_111 Int)) (or (< v_ULTIMATE.start_main_~i~0_111 2) (= (select (let ((.cse0 (let ((.cse2 (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base))) (store .cse2 (+ c_ULTIMATE.start_main_~b~0.offset 8) (+ (select .cse2 c_ULTIMATE.start_main_~b~0.offset) (select (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base) c_ULTIMATE.start_main_~a~0.offset))))) (.cse1 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1) (+ (select (select (store |c_#memory_int| c_ULTIMATE.start_main_~b~0.base .cse0) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse1 (- 8))) (select .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1 (- 8)))))) c_ULTIMATE.start_main_~b~0.offset) 1))) is different from false [2021-11-07 01:33:44,047 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~i~0_111 Int) (ULTIMATE.start_main_~i~0 Int)) (or (= (select (let ((.cse4 (let ((.cse5 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base)) (.cse6 (* ULTIMATE.start_main_~i~0 8))) (store .cse5 (+ .cse6 c_ULTIMATE.start_main_~a~0.offset) (+ (select .cse5 (+ .cse6 c_ULTIMATE.start_main_~a~0.offset (- 8))) 20))))) (let ((.cse2 (store |c_#memory_int| c_ULTIMATE.start_main_~a~0.base .cse4))) (let ((.cse0 (let ((.cse3 (select .cse2 c_ULTIMATE.start_main_~b~0.base))) (store .cse3 (+ c_ULTIMATE.start_main_~b~0.offset 8) (+ (select .cse4 c_ULTIMATE.start_main_~a~0.offset) (select .cse3 c_ULTIMATE.start_main_~b~0.offset))))) (.cse1 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1) (+ (select .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1 (- 8))) (select (select (store .cse2 c_ULTIMATE.start_main_~b~0.base .cse0) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse1 (- 8)))))))) c_ULTIMATE.start_main_~b~0.offset) 1) (< v_ULTIMATE.start_main_~i~0_111 2))) is different from false [2021-11-07 01:33:46,150 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~i~0_111 Int) (ULTIMATE.start_main_~i~0 Int) (v_ULTIMATE.start_main_~i~0_115 Int)) (or (= (select (let ((.cse4 (let ((.cse5 (let ((.cse7 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base)) (.cse8 (* ULTIMATE.start_main_~i~0 8))) (store .cse7 (+ .cse8 c_ULTIMATE.start_main_~a~0.offset) (+ (select .cse7 (+ .cse8 c_ULTIMATE.start_main_~a~0.offset (- 8))) 20)))) (.cse6 (* v_ULTIMATE.start_main_~i~0_115 8))) (store .cse5 (+ .cse6 c_ULTIMATE.start_main_~a~0.offset) (+ (select .cse5 (+ .cse6 c_ULTIMATE.start_main_~a~0.offset (- 8))) 20))))) (let ((.cse2 (store |c_#memory_int| c_ULTIMATE.start_main_~a~0.base .cse4))) (let ((.cse0 (let ((.cse3 (select .cse2 c_ULTIMATE.start_main_~b~0.base))) (store .cse3 (+ c_ULTIMATE.start_main_~b~0.offset 8) (+ (select .cse4 c_ULTIMATE.start_main_~a~0.offset) (select .cse3 c_ULTIMATE.start_main_~b~0.offset))))) (.cse1 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1) (+ (select .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1 (- 8))) (select (select (store .cse2 c_ULTIMATE.start_main_~b~0.base .cse0) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse1 (- 8)))))))) c_ULTIMATE.start_main_~b~0.offset) 1) (< v_ULTIMATE.start_main_~i~0_111 2))) is different from false [2021-11-07 01:33:46,185 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2021-11-07 01:33:46,185 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:33:46,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455237379] [2021-11-07 01:33:46,185 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:33:46,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877661737] [2021-11-07 01:33:46,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877661737] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:33:46,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [472737359] [2021-11-07 01:33:46,189 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 01:33:46,189 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:33:46,190 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:33:46,190 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:33:46,190 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:33:46,198 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,198 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:33:46,199 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,199 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:33:46,199 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:33:46,200 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,200 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:33:46,201 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 01:33:46,203 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_29|], 21=[|v_#valid_32|]} [2021-11-07 01:33:46,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:33:46,216 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:33:46,217 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,218 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:33:46,218 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:33:46,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:46,223 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,255 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 31 treesize of output 30 [2021-11-07 01:33:46,256 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,258 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:33:46,259 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,259 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:33:46,259 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:33:46,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:46,263 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,269 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,270 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 01:33:46,271 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:33:46,271 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 01:33:46,279 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size [2021-11-07 01:33:46,280 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:33:46,280 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,281 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-11-07 01:33:46,281 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:33:46,282 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,282 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:33:46,283 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:33:46,284 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,284 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-07 01:33:46,287 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-11-07 01:33:46,292 INFO L446 ElimStorePlain]: Different costs {9=[|v_#length_30|], 28=[|v_#valid_33|]} [2021-11-07 01:33:46,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,376 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 01:33:46,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 39 [2021-11-07 01:33:46,378 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:33:46,380 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,380 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:33:46,381 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:33:46,388 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:33:46,389 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,389 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:33:46,389 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,390 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:33:46,390 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:33:46,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:46,398 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,462 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 01:33:46,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 53 [2021-11-07 01:33:46,463 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,465 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:33:46,466 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,466 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:33:46,466 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:33:46,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:46,474 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2021-11-07 01:33:46,491 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,492 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:33:46,493 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,493 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:33:46,493 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:33:46,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:46,501 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,503 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,506 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-11-07 01:33:46,506 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:33:46,507 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:396, output treesize:177 [2021-11-07 01:33:46,511 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,513 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:33:46,513 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,514 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:33:46,525 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-11-07 01:33:46,539 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:33:46,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-11-07 01:33:46,548 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,550 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-07 01:33:46,551 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,551 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-07 01:33:46,551 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:33:46,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:46,560 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,563 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,567 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 201 [2021-11-07 01:33:46,567 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:33:46,568 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:211, output treesize:201 [2021-11-07 01:33:46,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:46,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:46,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:46,658 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,672 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:33:46,679 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,680 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:33:46,680 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:33:46,686 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:33:46,687 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,687 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-11-07 01:33:46,693 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 439 [2021-11-07 01:33:46,694 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:33:46,700 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,706 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 409 [2021-11-07 01:33:46,713 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 488 [2021-11-07 01:33:46,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-07 01:33:46,767 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-11-07 01:33:46,769 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-11-07 01:33:46,770 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:33:46,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,787 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:33:46,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-11-07 01:33:46,796 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,797 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:33:46,798 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,799 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:33:46,799 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:33:46,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:46,839 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,855 INFO L180 QuantifierPusher]: treesize reduction 135, result has 77.1 percent of original size [2021-11-07 01:33:46,861 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 455 [2021-11-07 01:33:46,862 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:33:46,862 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:589, output treesize:455 [2021-11-07 01:33:46,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:46,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:46,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:46,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:46,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:46,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:46,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:46,935 INFO L180 QuantifierPusher]: treesize reduction 48, result has 64.4 percent of original size [2021-11-07 01:33:46,936 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:33:46,936 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,937 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 01:33:46,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-07 01:33:46,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2021-11-07 01:33:46,945 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,945 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:33:46,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:33:46,946 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:33:46,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:46,949 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,950 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,951 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-07 01:33:46,951 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:33:46,951 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:80 [2021-11-07 01:33:46,956 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-11-07 01:33:46,958 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:33:46,960 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,961 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:33:46,961 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,962 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:33:46,963 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-11-07 01:33:46,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:46,971 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:33:46,974 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:33:46,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:33:46,975 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,975 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:33:46,976 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,976 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:33:46,977 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:33:46,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:46,979 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,980 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:46,981 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-11-07 01:33:46,981 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:33:46,982 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:95, output treesize:91 [2021-11-07 01:33:46,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:46,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:46,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:47,005 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:47,009 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:33:47,011 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:47,011 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:33:47,011 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:47,012 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:33:47,013 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:33:47,013 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:47,013 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 01:33:47,015 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-11-07 01:33:47,015 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:33:47,017 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:47,018 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-11-07 01:33:47,020 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-11-07 01:33:47,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:47,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:47,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:47,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:47,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:47,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:47,046 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:33:47,047 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:33:47,053 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-07 01:33:47,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 69 treesize of output 68 [2021-11-07 01:33:47,054 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:47,055 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-07 01:33:47,056 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:47,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-07 01:33:47,057 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:33:47,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:47,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:47,067 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:33:47,071 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:33:47,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:33:47,072 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:47,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:33:47,073 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:47,073 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:33:47,074 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:33:47,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:47,087 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:47,097 INFO L180 QuantifierPusher]: treesize reduction 111, result has 65.5 percent of original size [2021-11-07 01:33:47,099 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-11-07 01:33:47,100 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:33:47,100 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:330, output treesize:211 [2021-11-07 01:33:47,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:47,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:47,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:47,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:47,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:47,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:47,129 INFO L180 QuantifierPusher]: treesize reduction 48, result has 66.7 percent of original size [2021-11-07 01:33:47,130 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:33:47,130 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:47,131 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:33:47,132 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 01:33:47,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:47,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:47,139 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:33:47,143 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:33:47,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:33:47,144 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:47,145 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:33:47,145 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:47,145 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:33:47,146 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:33:47,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:33:47,148 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:47,149 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:33:47,150 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-07 01:33:47,150 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:33:47,151 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:89 [2021-11-07 01:33:47,156 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-11-07 01:33:47,158 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:33:47,162 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:33:47,899 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:33:47,899 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:33:47,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-11-07 01:33:47,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749676296] [2021-11-07 01:33:47,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-07 01:33:47,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:33:47,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-07 01:33:47,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=260, Unknown=4, NotChecked=140, Total=462 [2021-11-07 01:33:47,900 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. Second operand has 17 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:49,920 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse11 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base)) (.cse9 (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base))) (and (forall ((v_ULTIMATE.start_main_~i~0_111 Int) (ULTIMATE.start_main_~i~0 Int) (v_ULTIMATE.start_main_~i~0_115 Int)) (or (= (select (let ((.cse4 (let ((.cse5 (let ((.cse7 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base)) (.cse8 (* ULTIMATE.start_main_~i~0 8))) (store .cse7 (+ .cse8 c_ULTIMATE.start_main_~a~0.offset) (+ (select .cse7 (+ .cse8 c_ULTIMATE.start_main_~a~0.offset (- 8))) 20)))) (.cse6 (* v_ULTIMATE.start_main_~i~0_115 8))) (store .cse5 (+ .cse6 c_ULTIMATE.start_main_~a~0.offset) (+ (select .cse5 (+ .cse6 c_ULTIMATE.start_main_~a~0.offset (- 8))) 20))))) (let ((.cse2 (store |c_#memory_int| c_ULTIMATE.start_main_~a~0.base .cse4))) (let ((.cse0 (let ((.cse3 (select .cse2 c_ULTIMATE.start_main_~b~0.base))) (store .cse3 (+ c_ULTIMATE.start_main_~b~0.offset 8) (+ (select .cse4 c_ULTIMATE.start_main_~a~0.offset) (select .cse3 c_ULTIMATE.start_main_~b~0.offset))))) (.cse1 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1) (+ (select .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1 (- 8))) (select (select (store .cse2 c_ULTIMATE.start_main_~b~0.base .cse0) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse1 (- 8)))))))) c_ULTIMATE.start_main_~b~0.offset) 1) (< v_ULTIMATE.start_main_~i~0_111 2))) (= (select (let ((.cse10 (* c_ULTIMATE.start_main_~i~0 8))) (store .cse9 (+ .cse10 c_ULTIMATE.start_main_~b~0.offset) (+ (select .cse9 (+ .cse10 c_ULTIMATE.start_main_~b~0.offset (- 8))) (select .cse11 (+ .cse10 c_ULTIMATE.start_main_~a~0.offset (- 8)))))) c_ULTIMATE.start_main_~b~0.offset) 1) (not (= c_ULTIMATE.start_main_~b~0.base c_ULTIMATE.start_main_~a~0.base)) (= 2 (select .cse11 c_ULTIMATE.start_main_~a~0.offset)) (= (select .cse9 c_ULTIMATE.start_main_~b~0.offset) 1) (= c_ULTIMATE.start_main_~b~0.offset 0))) is different from false [2021-11-07 01:33:51,845 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~i~0_111 Int) (ULTIMATE.start_main_~i~0 Int)) (or (= (select (let ((.cse4 (let ((.cse5 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base)) (.cse6 (* ULTIMATE.start_main_~i~0 8))) (store .cse5 (+ .cse6 c_ULTIMATE.start_main_~a~0.offset) (+ (select .cse5 (+ .cse6 c_ULTIMATE.start_main_~a~0.offset (- 8))) 20))))) (let ((.cse2 (store |c_#memory_int| c_ULTIMATE.start_main_~a~0.base .cse4))) (let ((.cse0 (let ((.cse3 (select .cse2 c_ULTIMATE.start_main_~b~0.base))) (store .cse3 (+ c_ULTIMATE.start_main_~b~0.offset 8) (+ (select .cse4 c_ULTIMATE.start_main_~a~0.offset) (select .cse3 c_ULTIMATE.start_main_~b~0.offset))))) (.cse1 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1) (+ (select .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1 (- 8))) (select (select (store .cse2 c_ULTIMATE.start_main_~b~0.base .cse0) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse1 (- 8)))))))) c_ULTIMATE.start_main_~b~0.offset) 1) (< v_ULTIMATE.start_main_~i~0_111 2))) (not (= c_ULTIMATE.start_main_~b~0.base c_ULTIMATE.start_main_~a~0.base)) (= (select (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base) c_ULTIMATE.start_main_~b~0.offset) 1) (exists ((v_ULTIMATE.start_main_~i~0_105 Int)) (let ((.cse7 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base))) (and (let ((.cse8 (* v_ULTIMATE.start_main_~i~0_105 8))) (= (select .cse7 (+ c_ULTIMATE.start_main_~a~0.offset .cse8)) (+ 20 (select .cse7 (+ c_ULTIMATE.start_main_~a~0.offset .cse8 (- 8)))))) (or (= 2 (select .cse7 c_ULTIMATE.start_main_~a~0.offset)) (= (* 8 v_ULTIMATE.start_main_~i~0_105) 0))))) (= c_ULTIMATE.start_main_~b~0.offset 0)) is different from false [2021-11-07 01:33:52,847 WARN L838 $PredicateComparison]: unable to prove that (and (not (= c_ULTIMATE.start_main_~b~0.base c_ULTIMATE.start_main_~a~0.base)) (= (select (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base) c_ULTIMATE.start_main_~b~0.offset) 1) (exists ((v_ULTIMATE.start_main_~i~0_105 Int) (v_ULTIMATE.start_main_~i~0_106 Int)) (let ((.cse0 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base)) (.cse7 (* v_ULTIMATE.start_main_~i~0_105 8))) (let ((.cse2 (* 8 v_ULTIMATE.start_main_~i~0_106)) (.cse6 (* 8 v_ULTIMATE.start_main_~i~0_105)) (.cse4 (select .cse0 (+ c_ULTIMATE.start_main_~a~0.offset .cse7)))) (and (let ((.cse1 (* v_ULTIMATE.start_main_~i~0_106 8))) (= (select .cse0 (+ c_ULTIMATE.start_main_~a~0.offset .cse1)) (+ (select .cse0 (+ c_ULTIMATE.start_main_~a~0.offset .cse1 (- 8))) 20))) (let ((.cse3 (not (= 8 .cse6)))) (or (and (= .cse2 0) (or .cse3 (= 22 .cse4))) (let ((.cse5 (select .cse0 c_ULTIMATE.start_main_~a~0.offset))) (and (or .cse3 (= (+ 20 .cse5) .cse4)) (or (= 2 .cse5) (= .cse6 0)))))) (or (= (+ 8 .cse2) .cse6) (= .cse4 (+ 20 (select .cse0 (+ c_ULTIMATE.start_main_~a~0.offset .cse7 (- 8)))))))))) (forall ((v_ULTIMATE.start_main_~i~0_111 Int)) (or (< v_ULTIMATE.start_main_~i~0_111 2) (= (select (let ((.cse8 (let ((.cse10 (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base))) (store .cse10 (+ c_ULTIMATE.start_main_~b~0.offset 8) (+ (select .cse10 c_ULTIMATE.start_main_~b~0.offset) (select (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base) c_ULTIMATE.start_main_~a~0.offset))))) (.cse9 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse8 (+ c_ULTIMATE.start_main_~b~0.offset .cse9) (+ (select (select (store |c_#memory_int| c_ULTIMATE.start_main_~b~0.base .cse8) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse9 (- 8))) (select .cse8 (+ c_ULTIMATE.start_main_~b~0.offset .cse9 (- 8)))))) c_ULTIMATE.start_main_~b~0.offset) 1))) (= c_ULTIMATE.start_main_~b~0.offset 0)) is different from false [2021-11-07 01:33:53,850 WARN L838 $PredicateComparison]: unable to prove that (and (not (= c_ULTIMATE.start_main_~b~0.base c_ULTIMATE.start_main_~a~0.base)) (= (select (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base) c_ULTIMATE.start_main_~b~0.offset) 1) (forall ((v_ULTIMATE.start_main_~i~0_111 Int)) (or (< v_ULTIMATE.start_main_~i~0_111 (+ c_ULTIMATE.start_main_~i~0 1)) (= (select (let ((.cse0 (let ((.cse2 (select |c_#memory_int| c_ULTIMATE.start_main_~b~0.base)) (.cse3 (* c_ULTIMATE.start_main_~i~0 8))) (store .cse2 (+ .cse3 c_ULTIMATE.start_main_~b~0.offset) (+ (select .cse2 (+ .cse3 c_ULTIMATE.start_main_~b~0.offset (- 8))) (select (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base) (+ .cse3 c_ULTIMATE.start_main_~a~0.offset (- 8))))))) (.cse1 (* v_ULTIMATE.start_main_~i~0_111 8))) (store .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1) (+ (select .cse0 (+ c_ULTIMATE.start_main_~b~0.offset .cse1 (- 8))) (select (select (store |c_#memory_int| c_ULTIMATE.start_main_~b~0.base .cse0) c_ULTIMATE.start_main_~a~0.base) (+ c_ULTIMATE.start_main_~a~0.offset .cse1 (- 8)))))) c_ULTIMATE.start_main_~b~0.offset) 1))) (exists ((v_ULTIMATE.start_main_~i~0_105 Int) (v_ULTIMATE.start_main_~i~0_106 Int)) (let ((.cse4 (select |c_#memory_int| c_ULTIMATE.start_main_~a~0.base)) (.cse11 (* v_ULTIMATE.start_main_~i~0_105 8))) (let ((.cse6 (* 8 v_ULTIMATE.start_main_~i~0_106)) (.cse10 (* 8 v_ULTIMATE.start_main_~i~0_105)) (.cse8 (select .cse4 (+ c_ULTIMATE.start_main_~a~0.offset .cse11)))) (and (let ((.cse5 (* v_ULTIMATE.start_main_~i~0_106 8))) (= (select .cse4 (+ c_ULTIMATE.start_main_~a~0.offset .cse5)) (+ (select .cse4 (+ c_ULTIMATE.start_main_~a~0.offset .cse5 (- 8))) 20))) (let ((.cse7 (not (= 8 .cse10)))) (or (and (= .cse6 0) (or .cse7 (= 22 .cse8))) (let ((.cse9 (select .cse4 c_ULTIMATE.start_main_~a~0.offset))) (and (or .cse7 (= (+ 20 .cse9) .cse8)) (or (= 2 .cse9) (= .cse10 0)))))) (or (= (+ 8 .cse6) .cse10) (= .cse8 (+ 20 (select .cse4 (+ c_ULTIMATE.start_main_~a~0.offset .cse11 (- 8)))))))))) (= c_ULTIMATE.start_main_~i~0 1) (= c_ULTIMATE.start_main_~b~0.offset 0)) is different from false [2021-11-07 01:33:59,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:33:59,319 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2021-11-07 01:33:59,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 01:33:59,322 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-07 01:33:59,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:33:59,323 INFO L225 Difference]: With dead ends: 47 [2021-11-07 01:33:59,324 INFO L226 Difference]: Without dead ends: 45 [2021-11-07 01:33:59,324 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=138, Invalid=588, Unknown=8, NotChecked=456, Total=1190 [2021-11-07 01:33:59,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-07 01:33:59,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 22. [2021-11-07 01:33:59,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.380952380952381) internal successors, (29), 21 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:59,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2021-11-07 01:33:59,331 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 29 transitions. Word has length 11 [2021-11-07 01:33:59,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:33:59,332 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 29 transitions. [2021-11-07 01:33:59,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:33:59,332 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2021-11-07 01:33:59,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-07 01:33:59,332 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:33:59,333 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:33:59,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:33:59,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:33:59,533 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:33:59,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:33:59,534 INFO L85 PathProgramCache]: Analyzing trace with hash -701556884, now seen corresponding path program 1 times [2021-11-07 01:33:59,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:33:59,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585939674] [2021-11-07 01:33:59,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:33:59,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:33:59,566 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:33:59,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [554888580] [2021-11-07 01:33:59,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:33:59,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:33:59,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:33:59,569 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:33:59,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-07 01:33:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:33:59,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-07 01:33:59,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:33:59,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-07 01:33:59,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-11-07 01:33:59,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:59,766 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:33:59,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 32 [2021-11-07 01:33:59,830 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:33:59,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:33:59,841 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-07 01:33:59,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 44 [2021-11-07 01:34:00,029 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-11-07 01:34:00,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 40 [2021-11-07 01:34:00,044 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:00,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:00,311 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:00,312 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:34:00,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585939674] [2021-11-07 01:34:00,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:34:00,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554888580] [2021-11-07 01:34:00,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554888580] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:34:00,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [870169317] [2021-11-07 01:34:00,315 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-07 01:34:00,315 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:34:00,316 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:34:00,316 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:34:00,316 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:34:00,322 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,323 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:00,323 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,324 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:34:00,325 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:00,325 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,326 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:34:00,327 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 01:34:00,330 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_32|], 21=[|v_#valid_36|]} [2021-11-07 01:34:00,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:34:00,344 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:34:00,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,346 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:34:00,346 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:00,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:00,351 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,377 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 31 treesize of output 30 [2021-11-07 01:34:00,378 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:34:00,382 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,382 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:34:00,383 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:00,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:00,386 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,387 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,389 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 01:34:00,389 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:34:00,390 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 01:34:00,397 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size [2021-11-07 01:34:00,398 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:00,399 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,400 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-07 01:34:00,400 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:00,401 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,401 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-11-07 01:34:00,402 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:00,402 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,403 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:34:00,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-11-07 01:34:00,409 INFO L446 ElimStorePlain]: Different costs {9=[|v_#length_33|], 28=[|v_#valid_37|]} [2021-11-07 01:34:00,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,470 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 01:34:00,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 39 [2021-11-07 01:34:00,471 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,473 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:34:00,474 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,474 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:34:00,475 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:00,483 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:34:00,483 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,483 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:34:00,484 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,484 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:34:00,484 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:00,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:00,489 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,546 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 01:34:00,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 53 [2021-11-07 01:34:00,547 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,549 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:34:00,550 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,550 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:34:00,551 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:00,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:00,557 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2021-11-07 01:34:00,577 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,579 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:34:00,580 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,580 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:34:00,580 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:00,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:00,588 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,590 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,592 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-11-07 01:34:00,593 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:34:00,593 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:396, output treesize:177 [2021-11-07 01:34:00,597 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,599 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:00,599 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,600 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:34:00,602 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-11-07 01:34:00,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,619 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:34:00,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-11-07 01:34:00,625 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,627 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:34:00,628 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,628 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:34:00,629 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:00,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:00,636 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,638 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,641 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-11-07 01:34:00,641 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:34:00,642 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:211, output treesize:214 [2021-11-07 01:34:00,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:00,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:00,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:00,728 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,738 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:00,742 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,743 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:00,744 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,744 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:34:00,745 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:00,746 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,746 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-11-07 01:34:00,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 450 [2021-11-07 01:34:00,751 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:00,755 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,760 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 420 [2021-11-07 01:34:00,765 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 499 [2021-11-07 01:34:00,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 79 [2021-11-07 01:34:00,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,823 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-11-07 01:34:00,824 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,825 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-11-07 01:34:00,825 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:00,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,843 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:34:00,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-11-07 01:34:00,850 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,852 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:34:00,853 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:34:00,854 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:00,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:00,890 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,904 INFO L180 QuantifierPusher]: treesize reduction 137, result has 77.3 percent of original size [2021-11-07 01:34:00,909 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 466 [2021-11-07 01:34:00,910 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:34:00,911 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:600, output treesize:466 [2021-11-07 01:34:00,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:00,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:00,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:00,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:00,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:00,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:00,971 INFO L180 QuantifierPusher]: treesize reduction 48, result has 64.4 percent of original size [2021-11-07 01:34:00,972 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:00,973 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,973 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 01:34:00,974 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-07 01:34:00,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:00,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2021-11-07 01:34:00,982 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,983 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:34:00,983 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,984 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:34:00,984 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:00,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:00,987 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,988 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:00,989 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-07 01:34:00,989 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:34:00,989 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:80 [2021-11-07 01:34:00,995 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-11-07 01:34:00,997 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:34:00,999 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,001 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:01,001 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,002 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:34:01,003 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-11-07 01:34:01,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:01,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:01,012 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:34:01,016 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:34:01,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:34:01,017 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,018 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:34:01,018 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,019 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:34:01,019 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:01,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:01,022 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,023 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,024 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-11-07 01:34:01,024 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:34:01,025 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:95, output treesize:93 [2021-11-07 01:34:01,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:01,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:01,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:01,051 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,054 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:01,056 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,057 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:01,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 01:34:01,058 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:01,059 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:34:01,060 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 191 [2021-11-07 01:34:01,061 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:01,075 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,076 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 153 [2021-11-07 01:34:01,078 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 226 [2021-11-07 01:34:01,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:01,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:01,094 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:34:01,098 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:34:01,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:34:01,099 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:34:01,101 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,101 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:34:01,101 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:01,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:01,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:01,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:01,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:01,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:01,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:01,116 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:34:01,116 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:34:01,122 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-07 01:34:01,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 69 treesize of output 68 [2021-11-07 01:34:01,122 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,123 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 01:34:01,123 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,125 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 01:34:01,125 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:01,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:01,134 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,142 INFO L180 QuantifierPusher]: treesize reduction 115, result has 64.7 percent of original size [2021-11-07 01:34:01,143 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-11-07 01:34:01,144 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:34:01,144 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:330, output treesize:211 [2021-11-07 01:34:01,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:01,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:01,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:01,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:01,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:01,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:01,174 INFO L180 QuantifierPusher]: treesize reduction 48, result has 66.7 percent of original size [2021-11-07 01:34:01,175 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:01,176 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,176 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:34:01,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 01:34:01,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:01,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:01,187 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:34:01,191 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:34:01,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:34:01,192 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,193 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:34:01,194 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,194 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:34:01,195 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:01,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:01,197 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,198 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,199 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-11-07 01:34:01,200 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:34:01,200 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:91 [2021-11-07 01:34:01,208 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-11-07 01:34:01,210 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:34:01,214 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:01,216 INFO L185 QuantifierPusher]: treesize reduction 3, result has 96.5 percent of original size 83 [2021-11-07 01:34:01,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:01,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:01,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:01,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:01,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:01,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:01,242 INFO L180 QuantifierPusher]: treesize reduction 48, result has 68.6 percent of original size [2021-11-07 01:34:01,245 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 114 [2021-11-07 01:34:01,255 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:34:02,213 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:34:02,213 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:34:02,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-11-07 01:34:02,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951509407] [2021-11-07 01:34:02,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-07 01:34:02,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:34:02,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-07 01:34:02,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2021-11-07 01:34:02,217 INFO L87 Difference]: Start difference. First operand 22 states and 29 transitions. Second operand has 15 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:03,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:03,515 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2021-11-07 01:34:03,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 01:34:03,517 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-07 01:34:03,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:03,518 INFO L225 Difference]: With dead ends: 54 [2021-11-07 01:34:03,518 INFO L226 Difference]: Without dead ends: 52 [2021-11-07 01:34:03,519 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=174, Invalid=818, Unknown=0, NotChecked=0, Total=992 [2021-11-07 01:34:03,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-07 01:34:03,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 27. [2021-11-07 01:34:03,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 26 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:03,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2021-11-07 01:34:03,530 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 12 [2021-11-07 01:34:03,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:03,531 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2021-11-07 01:34:03,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:03,531 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2021-11-07 01:34:03,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-07 01:34:03,532 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:03,532 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:34:03,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:03,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable115 [2021-11-07 01:34:03,752 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:34:03,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:03,753 INFO L85 PathProgramCache]: Analyzing trace with hash -844903339, now seen corresponding path program 4 times [2021-11-07 01:34:03,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:34:03,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353149244] [2021-11-07 01:34:03,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:03,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:34:03,782 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:34:03,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [961486901] [2021-11-07 01:34:03,783 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 01:34:03,783 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:34:03,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:34:03,785 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:34:03,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-07 01:34:03,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:34:03,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:34:03,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:04,024 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:04,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:34:04,094 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:34:04,095 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:34:04,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353149244] [2021-11-07 01:34:04,095 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:34:04,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961486901] [2021-11-07 01:34:04,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961486901] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:34:04,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1156152505] [2021-11-07 01:34:04,097 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-07 01:34:04,097 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:34:04,098 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:34:04,098 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:34:04,098 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:34:04,104 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,105 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:04,105 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,106 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:34:04,106 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:04,107 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,107 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:34:04,108 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 01:34:04,113 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_35|], 21=[|v_#valid_39|]} [2021-11-07 01:34:04,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:34:04,127 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,127 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:34:04,128 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,128 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:34:04,128 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:04,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:04,133 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,160 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 31 treesize of output 30 [2021-11-07 01:34:04,161 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,164 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:34:04,165 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,165 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:34:04,165 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:04,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:04,170 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,171 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,173 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 01:34:04,173 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:34:04,173 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 01:34:04,181 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.2 percent of original size [2021-11-07 01:34:04,182 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:04,183 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,183 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-07 01:34:04,184 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:04,184 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,185 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-11-07 01:34:04,185 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:04,186 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,186 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:34:04,189 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-11-07 01:34:04,196 INFO L446 ElimStorePlain]: Different costs {9=[|v_#length_36|], 28=[|v_#valid_40|]} [2021-11-07 01:34:04,203 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:34:04,204 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,204 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:34:04,205 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,205 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:34:04,205 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:04,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,261 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 01:34:04,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 39 [2021-11-07 01:34:04,263 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,264 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:34:04,265 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,265 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-07 01:34:04,266 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:04,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:04,276 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,354 INFO L354 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2021-11-07 01:34:04,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 53 [2021-11-07 01:34:04,355 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,358 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:34:04,358 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,359 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:34:04,359 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:04,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:04,368 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2021-11-07 01:34:04,389 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,390 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:34:04,391 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,391 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-07 01:34:04,392 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:04,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:04,400 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,403 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-11-07 01:34:04,406 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:34:04,406 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:396, output treesize:177 [2021-11-07 01:34:04,409 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,411 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:04,412 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,412 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:34:04,415 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-11-07 01:34:04,430 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:34:04,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-11-07 01:34:04,441 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,442 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 01:34:04,443 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,444 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-07 01:34:04,444 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:04,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:04,451 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,455 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,459 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-11-07 01:34:04,460 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:34:04,460 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:211, output treesize:212 [2021-11-07 01:34:04,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:04,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:04,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:04,561 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,576 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:04,581 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,582 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:04,582 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-07 01:34:04,584 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:04,584 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,585 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-11-07 01:34:04,592 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 450 [2021-11-07 01:34:04,593 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:04,597 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,602 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 420 [2021-11-07 01:34:04,607 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 499 [2021-11-07 01:34:04,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 79 [2021-11-07 01:34:04,669 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,671 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-11-07 01:34:04,672 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,672 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-11-07 01:34:04,673 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:04,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,693 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:34:04,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 62 [2021-11-07 01:34:04,701 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,703 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-07 01:34:04,703 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,704 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-07 01:34:04,704 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:04,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:04,739 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,762 INFO L180 QuantifierPusher]: treesize reduction 133, result has 77.4 percent of original size [2021-11-07 01:34:04,768 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 455 [2021-11-07 01:34:04,769 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:34:04,769 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:600, output treesize:455 [2021-11-07 01:34:04,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:04,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:04,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:04,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:04,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:04,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:04,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:04,839 INFO L180 QuantifierPusher]: treesize reduction 48, result has 64.4 percent of original size [2021-11-07 01:34:04,840 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:04,841 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-07 01:34:04,842 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-11-07 01:34:04,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 27 [2021-11-07 01:34:04,849 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,850 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:34:04,851 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,851 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-07 01:34:04,852 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:04,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:04,854 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,855 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,856 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-11-07 01:34:04,856 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:34:04,857 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:84, output treesize:80 [2021-11-07 01:34:04,867 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-11-07 01:34:04,868 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:34:04,870 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,871 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:04,872 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,872 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:34:04,873 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-11-07 01:34:04,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,881 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:34:04,885 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:34:04,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:34:04,886 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,887 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:34:04,887 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,888 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-07 01:34:04,888 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:04,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:04,890 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,891 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,892 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-11-07 01:34:04,893 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:34:04,893 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:95, output treesize:91 [2021-11-07 01:34:04,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:04,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:04,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:04,914 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,918 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:04,920 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,921 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:04,921 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,922 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-11-07 01:34:04,922 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:04,923 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,923 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:34:04,925 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-11-07 01:34:04,925 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:04,927 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-11-07 01:34:04,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-11-07 01:34:04,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:04,982 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:34:04,983 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:34:04,991 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-07 01:34:04,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 69 treesize of output 68 [2021-11-07 01:34:04,992 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,993 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-07 01:34:04,994 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:04,994 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-07 01:34:04,995 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:05,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:05,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:05,007 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:34:05,012 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:34:05,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:34:05,013 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:05,014 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:34:05,015 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:05,015 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:34:05,015 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:05,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:05,027 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:05,032 INFO L180 QuantifierPusher]: treesize reduction 119, result has 65.0 percent of original size [2021-11-07 01:34:05,034 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-07 01:34:05,035 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:34:05,035 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:330, output treesize:221 [2021-11-07 01:34:05,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:05,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:05,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:05,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:05,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:05,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:05,065 INFO L180 QuantifierPusher]: treesize reduction 48, result has 66.7 percent of original size [2021-11-07 01:34:05,066 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:34:05,067 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:05,067 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-07 01:34:05,068 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 01:34:05,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:05,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:34:05,078 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:34:05,082 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:34:05,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 39 [2021-11-07 01:34:05,083 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:05,084 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:34:05,084 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:05,085 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:34:05,085 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:34:05,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:34:05,088 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:05,089 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:34:05,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-11-07 01:34:05,090 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:34:05,090 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:91 [2021-11-07 01:34:05,097 INFO L180 QuantifierPusher]: treesize reduction 49, result has 54.6 percent of original size [2021-11-07 01:34:05,099 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-07 01:34:05,104 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:34:05,601 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:34:05,601 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:34:05,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2021-11-07 01:34:05,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956925301] [2021-11-07 01:34:05,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 01:34:05,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:34:05,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 01:34:05,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2021-11-07 01:34:05,603 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:05,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:34:05,776 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2021-11-07 01:34:05,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 01:34:05,776 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-07 01:34:05,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:34:05,777 INFO L225 Difference]: With dead ends: 58 [2021-11-07 01:34:05,777 INFO L226 Difference]: Without dead ends: 51 [2021-11-07 01:34:05,777 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2021-11-07 01:34:05,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-07 01:34:05,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 26. [2021-11-07 01:34:05,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:05,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2021-11-07 01:34:05,789 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 12 [2021-11-07 01:34:05,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:34:05,789 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-11-07 01:34:05,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:34:05,790 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2021-11-07 01:34:05,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 01:34:05,790 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:34:05,790 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:34:05,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:34:06,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:34:06,005 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:34:06,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:34:06,005 INFO L85 PathProgramCache]: Analyzing trace with hash -426879810, now seen corresponding path program 5 times [2021-11-07 01:34:06,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:34:06,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995505632] [2021-11-07 01:34:06,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:34:06,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:34:06,030 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:34:06,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [392839046] [2021-11-07 01:34:06,044 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 01:34:06,044 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:34:06,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:34:06,045 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:34:06,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e89ef4-a5c5-47a3-8205-d55d05102dca/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-07 01:34:06,241 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-07 01:34:06,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 01:34:06,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-07 01:34:06,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:34:06,272 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-07 01:34:06,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-11-07 01:34:06,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-07 01:34:06,343 INFO L354 Elim1Store]: treesize reduction 80, result has 20.0 percent of original size [2021-11-07 01:34:06,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2021-11-07 01:34:06,506 INFO L354 Elim1Store]: treesize reduction 210, result has 24.7 percent of original size [2021-11-07 01:34:06,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 69 treesize of output 106 [2021-11-07 01:34:07,144 INFO L354 Elim1Store]: treesize reduction 378, result has 28.1 percent of original size [2021-11-07 01:34:07,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 125 treesize of output 216 [2021-11-07 01:35:03,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:03,934 INFO L354 Elim1Store]: treesize reduction 330, result has 0.3 percent of original size [2021-11-07 01:35:03,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 268 treesize of output 230 [2021-11-07 01:35:24,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:35:24,670 INFO L354 Elim1Store]: treesize reduction 575, result has 4.8 percent of original size [2021-11-07 01:35:24,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 2 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 33 case distinctions, treesize of input 310 treesize of output 275 [2021-11-07 01:36:01,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:36:02,244 INFO L354 Elim1Store]: treesize reduction 2156, result has 7.6 percent of original size [2021-11-07 01:36:02,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 1 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 105 case distinctions, treesize of input 338 treesize of output 348